Transmission band and case cover



WMLM

H. E. MIIEBACH ET AL TRANSMISSION BAND AND' CASE COVER iled on. 1. 1920 2 She9t s l INVENTORS -Meam i 73 3 A TTORNE w 5v t rn e t. y it i TFEANSLEEE$ION BAND AND CllElE CQVER.

Application and net-uteri,

T 0 all to itom it may concern Be it-lrnown that we, HARRY E. Mrnnaon and Arno Pr S. CAUGHEY, citizens of Can ada, residing at 'Lethbridge, -Province of Alberta, Dominion of Canada, have in-' .vented certain new and useful improvements in 'lransmissionlBands and Case Covers, of which the.- following is a specification.

This invention relates to an improved transmission band and casing'cover for motor vehicles, and has as one of its principal objects to provide a constructionwhereby the transmission bands of a vehicle -may, without the necessityfor removing the transmission cover, be readily displaced. v

The invention bases 21 further object to provide a construction wherein the-ear irons doors or the cover being removed,

7 its detachable ear iron removed,

cover, and

at corresponding ends of the transmission bands may be-detached so that the-bands may simply be pulled ,from around thedrumsot the transmission. a Andthe invention has as a still further object to provide a construction wherein the transmission cover will be'equipped'with a door through which the transmission bands may be readily reached and removed. Other and,inc idental objects will appear hereinafter. i

In the drawings: Figure 1 is a perspective View showing a transmission embodying our invention, the

Figure 2 is an enlarged perspective view. showing one of the transmission bands with Figure 3 is an edge elevation of the band, Figure lis a fragmentary section taken through the detachable ear iron of the band, Figure 5 is a vertical section takenthrough the side door' of the transmission Figure 6 is a detail perspective view of the cover.

The present invention is particularly applicable to transmissions asemployed on a wellknown widel used type of vehicle. In Figure 1, an engine of this type'oi vehicle is indicated at 10. lln the rear of'the engins is the transmission enclosed by a cover 11. This cover as now produced is provided with -a"'top door 12 securedby a plurality of cap screws. As is well known, the transmission includes a plurality of drums about which are arranged transmission bands, three bands in allbeing employed.

' band.

into. serial. no. 414,100.

These bands are tightened about the drums by foot pedals 13, one pedal operating each From each pedal extends apedal shaft through one side wall of the transmission cover and at their inner end portions theseshafts are operatively coupled with the transmission bands. For this purpose, said bands are each, in accordance with present practice, equipped at their ends with a pair of ear irons through which the pedal shafts freely extend. These ear irons are riveted to the bands and when the bands are being removed, prevent the bands from being pulled endwise from around the drums. It accordingly becomes necessary, under present conditions, to remove the transmission cover in order to effect displacement of the bands. The present in vention seeks to overcome this ditliculty.

in carrying the invention into ell'ect, we

provide transmission bands 14. These bands may beformed of suitable resilient 'metal straps and connected to corresponding ends of the bands are ear'irons l5 riveted or otherwise permanently secured in position. The ear irons 15 are similar to those as at present usually employed. Struck from .with slots 19 to receive the hooks 16 while near, their inner ends said irons are pro- ,vided with openings 20 to-receive the studs -17. Thus, the ear iron may first beengaged with the hooks 16 when said irons may then be positioned against the bands for projecting the studs 17 through the 9 openings 20.; Engaging through the studs 17 arecotter pins 21 looking the ear irons upon the bands and, as will be observed,

said irons are provided with suitable recesses 22 to receive the cotter pins,'it being possible in this manner to form the studs 17 shorter than would otherwise be neces -sa'ry. The ear irons 15 and 18 are, of course, formed to coact with the shafts of the pedals 13 so that whenithev transmis sion bands are in place the pedals may be operated in the usual manner for contract.-

ing the bands.

. At thev side thereof opposite the pedals 13, the transmission cover 11 is formed with. a. door opening about one side and the bot-= tom of which are formed outwardly directed flanges 23. At the opposite side of said opening is a beveledwall 2a and normally I .closingthe opening is a side door 25. As

best shown in Figure 5 of. the drawings, this door is formed at one side and along its lower edge with flanges .26 mating with the flanges 23 and engaging through said flanges are pairs of cap sorews27. At its opposite side, the door is formed. with. a

beveled edge mating with the beveled wall 24 of the door opening and engaging through the adjacent margin ,of the door and through said wall is apair of cap screws A gasket is preferably arranged between 'the flan 23 and 26 as well as between the beveled alge of the door and the wall 24 so that, as will be seen, the pair of cap screws 28 may be adjusted for shiftingthe door to tightly bind against the gasket, the openings in the lowermost ofthe door flanges as well as the openingsin-the door for the cap screws 28 being slightly elongated to permit of lateral shifting of the door. At its 7 upper edge thedoor isformed with a flange Z5 29 mating with the usual flange upon the transmission cover for the top door 12 so that after the door 25 has been secured in plade, the door 12 may be applied. Threaded through the door 25 is the usual low speed adjusting screw 30 carrying the customary lock nut 31.

As will now be readily understood in view of the/preceding description, the door 12 may be displaced when, by removing the door 25, access may be readily had to the ear irons 18. 'Then, by removing the nut-s,

displacing the transmission cover.

Threaded into the upper edge of the side door 25 through the top door 12, are spaced cap screws 32 for additionally bracing the side door. In connection with removal of the band, it may be well to note that after the adjusting nut upon the end of the reverse pedal shaftihasbeen displaced, said shaft should be withdrawn endwise through its bearing sleeve for the greater portion of the length of the shaft so as to provide clearance, making the subsequent removal'of the reverse band more convenient. After this band has been removed, the low speed and brake bands may then, in turn, be slipped forward into the position normally occupied by the reverse band so that the low speed and brake bands may be removed with facility. i

Having thus described the invention, what is claimed as new is: a

F 1. A transmission band including a metallic strap having a transverse angular hook struck up therefrom adjacent one end, an

eariron having an angular opening therethrough receiving said hook, a post projecting from the strap between the hook and the end of the strap and extending through the ear iron, locking means detachably eng'agingthe post and securing the ear iron in position, and a coacting ear iron fixedly mounted upon theopposite end portion of the strap. v

2. A transmission band including a metallic strap having a transverse angular hook struck up therefrom near one end, an ear iron having an angular opening therethrough adjacent its outer end receiving said hook and having a second opening between the first openingand its inner end, a post projecting from the strap through the second opening in the ear iron in advance of the hook, the ear iron being provided in its outer side with a longitudinal recess intersecting said second opening, a key engaging through'the post and seated in said recess and bearing upon the ear iron to lock the same in position, and a coacting ear iron fixedly mounted upon the opposite end tion of the strap.

in testimony whereof we afiix oursignatures,

HARRY nonunion. 1,. 5. anuorr s CAUGHEY. D s] 

